diff --git a/cloud-etl-server/src/main/java/com/muyu/input/Demo.java b/cloud-etl-server/src/main/java/com/muyu/input/Demo.java
index 5c27e0f..1a1bbc9 100644
--- a/cloud-etl-server/src/main/java/com/muyu/input/Demo.java
+++ b/cloud-etl-server/src/main/java/com/muyu/input/Demo.java
@@ -36,7 +36,7 @@
 //            // 创建PutObject请求。
 //            PutObjectResult result = ossClient.putObject(putObjectRequest);
 //        } catch (OSSException oe) {
-//            System.out.println("Caught an OSSException, which means your request made it to OSS, "
+//            System.out.pri    ntln("Caught an OSSException, which means your request made it to OSS, "
 //                    + "but was rejected with an error response for some reason.");
 //            System.out.println("Error Message:" + oe.getErrorMessage());
 //            System.out.println("Error Code:" + oe.getErrorCode());
diff --git a/cloud-etl-server/src/main/java/com/muyu/javacomplier/JavaStringCompiler.java b/cloud-etl-server/src/main/java/com/muyu/javacomplier/JavaStringCompiler.java
index c3fb494..59a3fe4 100644
--- a/cloud-etl-server/src/main/java/com/muyu/javacomplier/JavaStringCompiler.java
+++ b/cloud-etl-server/src/main/java/com/muyu/javacomplier/JavaStringCompiler.java
@@ -1,4 +1,6 @@
-package com.itranswarp.compiler;
+package com.muyu.javacomplier;
+
+import com.muyu.dynamicLoad.DynamicLoader;
 
 import java.io.IOException;
 import java.util.Arrays;
@@ -12,7 +14,7 @@ import javax.tools.JavaCompiler.CompilationTask;
 
 /**
  * In-memory compile Java source code as String.
- * 
+ *
  * @author michael
  */
 public class JavaStringCompiler {
@@ -27,7 +29,7 @@ public class JavaStringCompiler {
 
 	/**
 	 * Compile a Java source file in memory.
-	 * 
+	 *
 	 * @param fileName
 	 *            Java file name, e.g. "Test.java"
 	 * @param source
@@ -38,7 +40,7 @@ public class JavaStringCompiler {
 	 *             If compile error.
 	 */
 	public Map<String, byte[]> compile(String fileName, String source) throws IOException {
-		try (MemoryJavaFileManager manager = new MemoryJavaFileManager(stdManager)) {
+		try (com.itranswarp.compiler.MemoryJavaFileManager manager = new com.itranswarp.compiler.MemoryJavaFileManager(stdManager)) {
 			JavaFileObject javaFileObject = manager.makeStringSource(fileName, source);
 			CompilationTask task = compiler.getTask(null, manager, null, null, null, Arrays.asList(javaFileObject));
 			Boolean result = task.call();
@@ -51,7 +53,7 @@ public class JavaStringCompiler {
 
 	/**
 	 * Load class from compiled classes.
-	 * 
+	 *
 	 * @param name
 	 *            Full class name.
 	 * @param classBytes
@@ -63,7 +65,7 @@ public class JavaStringCompiler {
 	 *             If load error.
 	 */
 	public Class<?> loadClass(String name, Map<String, byte[]> classBytes) throws ClassNotFoundException, IOException {
-		try (MemoryClassLoader classLoader = new MemoryClassLoader(classBytes)) {
+		try (DynamicLoader.MemoryClassLoader classLoader = new DynamicLoader.MemoryClassLoader(classBytes)) {
 			return classLoader.loadClass(name);
 		}
 	}
diff --git a/cloud-etl-server/src/main/java/com/muyu/javacomplier/MemoryJavaFileManager.java b/cloud-etl-server/src/main/java/com/muyu/javacomplier/MemoryJavaFileManager.java
index 107d4ff..70bb217 100644
--- a/cloud-etl-server/src/main/java/com/muyu/javacomplier/MemoryJavaFileManager.java
+++ b/cloud-etl-server/src/main/java/com/muyu/javacomplier/MemoryJavaFileManager.java
@@ -18,15 +18,15 @@ import javax.tools.SimpleJavaFileObject;
 
 /**
  * In-memory java file manager.
- * 
+ *
  * @author michael
  */
-class MemoryJavaFileManager extends ForwardingJavaFileManager<JavaFileManager> {
+public class MemoryJavaFileManager extends ForwardingJavaFileManager<JavaFileManager> {
 
 	// compiled classes in bytes:
 	final Map<String, byte[]> classBytes = new HashMap<String, byte[]>();
 
-	MemoryJavaFileManager(JavaFileManager fileManager) {
+	public MemoryJavaFileManager(JavaFileManager fileManager) {
 		super(fileManager);
 	}
 
@@ -53,7 +53,7 @@ class MemoryJavaFileManager extends ForwardingJavaFileManager<JavaFileManager> {
 		}
 	}
 
-	JavaFileObject makeStringSource(String name, String code) {
+	public JavaFileObject makeStringSource(String name, String code) {
 		return new MemoryInputJavaFileObject(name, code);
 	}